US 8113493 B2
A resilient device includes a fixing member defining two sliding holes, two slide members slidably mounted to opposite sides of the fixing member, and a number of elastic members. Each slide member includes a protrusion engagable in a corresponding sliding hole. The fixing member includes at least one receiving portion for receiving the elastic members, and the elastic members are disposed between the slide members and separated by the slide members. Therefore, each elastic member is positioned to resist against the slide members for biasing the slide members.
1. A resilient device comprising:
a fixing member comprising a fixing board, and two receiving portions disposed on two opposite sides of the fixing board, wherein the fixing board defines two sliding holes between the receiving portions, each of the receiving portions comprises a receiving room;
two slide members aligning with each other and slidably mounted to two opposite ends of the fixing member respectively, wherein each of the slide members comprises a connecting portion and a securing portion longitudinally extending from a middle portion of a first end of the connecting portion, and two fixing posts located at opposite sides of the securing portion and extending from the first end of the connecting portion; wherein the securing portion defines a U-shaped slot to form an elastic tab, a protrusion protrudes from a distal end of the elastic tab to be slidably engaged in a corresponding one of the sliding holes, and each of the fixing posts is received in the corresponding receiving room; and
a plurality of elastic members, received in the receiving portions of the fixing member, disposed between the slide members and separated by the fixing posts, wherein two opposite ends of each of the elastic members are positioned to respectively resist against the two slide members for biasing the slide members.
2. The resilient device of
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1. Technical Field
The present disclosure relates to resilient devices and, particularly, to a resilient device for providing enough force without interference of elastic members thereof.
2. Description of Related Art
Traditionally, a resilient device is utilized in an apparatus for returning a member of the apparatus to an original position/state. Nowadays, the resilient device is normally a spring. However, much force is required to bias the member, so that a plurality of springs are connected in parallel between the member and the apparatus to obtain enough force. However, the springs need to be connected to the member and the apparatus one by one, resulting in laborious and time-consuming. Moreover, the springs may tangle with one another to cause interference.
The fixing member 10 includes a longitudinal fixing board 12, and two U-shaped receiving portions 14 longitudinally positioned at opposite ends of the fixing board 12 respectively, facing the same direction. The fixing board 12 defines two longitudinal sliding holes 128 aligned with each other. Each receiving portion 14 includes a sidewall 120 perpendicularly extending upward from one side of the fixing board 12, a resisting board 122 perpendicularly extending from a free side of the sidewall 120 toward the other side of the opposite side of the fixing board 12, and a guiding board 124 perpendicularly extending down from a distal side of the resisting board 122. A receiving room 126 is formed bounded by the guiding board 124, the resisting board 122, the sidewall 120, and the side of the fixing board 12 correspondingly.
Each slide member 30 includes a connecting portion 32 and a securing portion 34 longitudinally extending from a middle portion of a first end of the connecting portion 32. The connecting portion 32 defines a fixing hole 320 for fixing the connecting portion 32 to a member (not shown) of an apparatus (not shown) that utilizes the present resilient device. Two fixing posts 38 located at opposite sides of the securing portion 34 extend from the first end of the connecting portion 32, respectively. As a result, two resisting surfaces 380 are formed on an end surface of the first end of the connecting portion 32, located at opposite sides of each fixing post 38. The securing portion 34 defines two guiding slots 33 longitudinally extending to communicate with the fixing hole 320. The securing portion 34 defines a U-shaped slot 340, with an elastic tab 36 formed in the slot 340. A protrusion 360 protrudes from a distal end of the elastic tab 36.
In the illustrated embodiment, each elastic member 50 is a helical spring.
In use, the resilient device is connected between two members of the apparatus via the fixing holes 320. When the members are moved toward each other, the slide members 30 are slid towards each other along the guiding boards 124. Correspondingly, the protrusions 360 are slid in the corresponding sliding holes 128 toward each other until the elastic members 50 cannot be deformed any further. When the members are released, the elastic members 50 return to a free state, thereby producing an elastic force pushing the slide members 30 to move away from each other. Correspondingly, the protrusions 360 are slid away from each other in the corresponding sliding holes 128 until firmly hooking onto the edge of sliding holes 128 correspondingly.
According to the above-mentioned embodiments, it is obvious that the fixing member 10 and the two slide members 30 are cooperatively configured to separate the elastic members 50, and prevent the elastic members 50 from interfering with one another. Correspondingly, the plurality of elastic members 50 able to work together for obtaining much force and meanwhile free of interference with each other.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being exemplary embodiments.